A compilation of the geology and measured and estimated shear-wave velocity profiles at strong-motion stations that recorded the Loma Prieta, California, earthquake

Each station was plotted on the best available large-scale (1-12,000 to 1:125,000) geologic map . In addition, I personally visited about 70 of the sites. This served as the basis for estimating the shear-wave velocity profile at each site where velocity had not been measured. Because of time constraints, I made no attempt to gather borehole data at these sites although such data would allow me to improve the velocity estimates. I will do this for the revised report.